Bug 38053: Change section of DefaultLongOverduePatronCategories and DefaultLongOverdu...

Bug 38053: Change section of DefaultLongOverduePatronCategories and DefaultLongOverdueSkipPatronCategories system preferences

This patch moves the DefaultLongOverduePatronCategories and
DefaultLongOverdueSkipPatronCategories system preferences to
the Lost item policy section of the circulation preferences,
to be with the other DefaultLongOverdue system preferences.

To test:
1. Apply patch
2. Go to Administration > System preferences > Circulation > Lost
   item policy
   --> The two system preferences should be there with the other
       ones

Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>